chore(util): update tests, types, correct tsconfig build (#1378)

Author: ahnpnl

src/compiler.ts

@@ -36,6 +36,7 @@ import { readFileSync, writeFileSync } from 'fs'
 import memoize = require('lodash.memoize')
 import mkdirp = require('mkdirp')
 import { basename, extname, join, normalize, relative } from 'path'
+import { LanguageServiceHost } from 'typescript'
 
 import { ConfigSet } from './config/config-set'
 import { MemoryCache, TsCompiler, TypeInfo } from './types'
@@ -133,7 +134,7 @@ export function createCompiler(configs: ConfigSet): TsCompiler {
       [LogContexts.logLevel]: LogLevels.trace,
     }
 
-    const serviceHost = {
+    const serviceHost: LanguageServiceHost = {
       getScriptFileNames: () => Object.keys(memoryCache.versions),
       getScriptVersion: (fileName: string) => {
         const normalizedFileName = normalize(fileName)

src/shims.d.ts

@@ -2,16 +2,3 @@ declare module 'fast-json-stable-stringify' {
   const fastJsonStableStringify: (input: any) => string
   export = fastJsonStableStringify
 }
-
-declare module 'babel__core' {
-  import { TransformOptions } from 'babel__core/index'
-  export * from 'babel__core/index'
-  export class OptionManager {
-    init(opt: TransformOptions): TransformOptions
-  }
-}
-
-declare module 'jest-config' {
-  import 'jest'
-  export const defaults: jest.InitialOptions
-}

src/types.ts

@@ -191,7 +191,3 @@ export interface AstTransformerDesc {
   version: number
   factory(cs: ConfigSet): TransformerFactory<SourceFile>
 }
-
-export interface IPackageJson {
-  main: string
-}

src/util/importer.spec.ts

@@ -121,3 +121,27 @@ describe('babelCore', () => {
 `)
   })
 })
+
+describe('babelJest', () => {
+  it('should be babel-jest', () => {
+    modules = {
+      'babel-jest': () => 'babel-jest',
+    }
+    expect(new Importer().babelJest(fakers.importReason())).toBe('babel-jest')
+  })
+  it('should fail with correct error message', () => {
+    expect(() => new Importer().babelJest(fakers.importReason())).toThrowErrorMatchingInlineSnapshot(`
+"Unable to load the module \\"babel-jest\\". [[BECAUSE]] To fix it:
+    ↳ install \\"babel-jest\\": \`npm i -D babel-jest\` (or \`yarn add --dev babel-jest\`)"
+`)
+  })
+})
+
+describe('typescript', () => {
+  it('should be typescript', () => {
+    modules = {
+      typescript: () => 'typescript',
+    }
+    expect(new Importer().typescript(fakers.importReason(), 'typescript')).toBe('typescript')
+  })
+})

tsconfig.build.json

@@ -8,12 +8,12 @@
     "declaration": true,
     "stripInternal": true,
     "outDir": "dist",
-    "rootDir": "src",
+    "rootDir": "src"
   },
   "include": ["src"],
   "exclude": [
     "**/*.spec.ts",
     "**/*.test.ts",
-    "**/__*__",
+    "**/__*__"
   ]
 }